I think they're just implying that even if YouTube figures out how to block adblock, someone will just find a way to block the adblock block and so on ad infinitum. It will just be the same game of cat and mouse we've been playing for years with the intrusive ad business.
Just so you and everyone else is aware. In the link you posted, everything after the question mark is a tracking id, using the link without that part of the link works perfectly fine and reduces traceability.